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DOI:	10.1371/journal.pone.0132649
论文题名:	An Experimental Comparison of Two Methods on Photosynthesis Driving Soil Respiration: Girdling and Defoliation
作者:	Yanli Jing; Dexin Guan; Jiabing Wu; Anzhi Wang; Changjie Jin; Fenghui Yuan
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2015
发表日期:	2015-7-15
卷:	10, 期:7
语种:	英语
英文关键词:	Soil respiration ; Fine roots ; Photosynthesis ; Starches ; Seasonal variations ; Carbohydrates ; Leaves ; Seedlings
英文摘要:	Previous studies with different experimental methods have demonstrated that photosynthesis significantly influences soil respiration (RS). To compare the experimental results of different methods, RS after girdling and defoliation was measured in five-year-old seedlings of Fraxinus mandshurica from June to September. Girdling and defoliation significantly reduced RS by 33% and 25% within 4 days, and 40% and 32% within the entire treatment period, respectively. The differential response of RS to girdling and defoliation was a result of the over-compensation for RS after girdling and redistribution of stored carbon after defoliation. No significant effect on RS was observed between girdling and defoliation treatment, while the soluble sugar content in fine roots was higher in defoliation than in girdling treatment, indicating that defoliation had less compensation effect for RS after interrupting photosynthates supply. We confirm the close coupling of RS with photosynthesis and recommend defoliation for further studies to estimate the effect of photosynthesis on RS.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0132649&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/21146
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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File Name/ File Size	Content Type	Version	Access	License
journal.pone.0132649.PDF（480KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China;Shenyang Agricultural University, Shenyang, China;State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China;State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China;State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China;State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China;State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China

Recommended Citation:

Yanli Jing,Dexin Guan,Jiabing Wu,et al. An Experimental Comparison of Two Methods on Photosynthesis Driving Soil Respiration: Girdling and Defoliation[J]. PLOS ONE,2015-01-01,10(7)

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